“Involuntariness”, “menace of penalty” and “work or service” are three core elements of forced labor. 

“非自愿”、“以惩罚相威胁”和“工作或服务”等三个要素构成强迫劳动。

Forced labor is explicitly prohibited by Chinese law.

中国法律明确禁止强迫劳动。

The crime of forced labor is specified in Article 244 of the Criminal Law.

《刑法》第244条规定了强迫劳动罪。

来源：同文世纪翻译，转载请注明出处！